BERLIN, NEW HAMPSHIRE — An unusual and eyebrow-raising late May snowfall event is in the forecast for the higher elevations of northern New Hampshire and western Maine, with the 00Z RRFS Total Snowfall forecast valid at 11:00 PM Saturday May 30, 2026 showing measurable snow accumulations possible across a localized zone centered near Berlin, New Hampshire and extending into the Rumford and Conway corridors of the White Mountains region.
RRFS Model Shows Up to 1.6 Inches of Snow Possible Near Berlin New Hampshire Saturday Night
The 00Z RRFS snowfall forecast valid at 11:00 PM Saturday May 30 shows the highest projected snow accumulation centered near Berlin, New Hampshire where the model is depicting up to 1.6 inches of total snowfall by that point in the forecast. This represents a remarkable late May snow event for a region that typically sees its last measurable snowfall weeks earlier in the calendar year.
The blue shading on the snowfall forecast map is concentrated across a relatively tight zone encompassing the northern White Mountains corridor, with the most intense accumulation signal focused directly over the Berlin and Rumford area where elevation plays a key role in supporting snow rather than rain during late season precipitation events.
Conway and Lewiston Areas Seeing 0.4 Inch Accumulations on Southern Edge of Snow Zone
On the southern and eastern fringes of the snowfall zone, Conway, New Hampshire and Lewiston, Maine are both depicted with 0.4 inch accumulations on the RRFS forecast. These lower totals reflect the transitional nature of the precipitation type at lower elevations and further south, where the marginal temperature profile keeps snowfall amounts well below those seen in the higher terrain to the north.
The broader gray shading surrounding the blue accumulation core extends across a wider area of northern New Hampshire, western Maine, and into portions of Vermont, suggesting that even where measurable snow does not accumulate, wintry precipitation in the form of mixed rain and snow will be possible across a larger geographic footprint on Saturday night.
Late May Snow Rare but Not Unprecedented for Northern New England Higher Elevations
While late May snowfall is certainly unusual and attention-grabbing across New England, it is not entirely unprecedented for the highest terrain areas of northern New Hampshire and western Maine where elevation keeps temperatures cold enough to support snow well into the spring season. Residents across the Berlin, Rumford, Conway, and surrounding mountain communities should be prepared for slippery conditions Saturday night.
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